Currently, the "checkout unit" and "build unit" are in the bamboo-home/xml-data/build-dir/PROJ-PLAN-JOBX folder. For a job, the code is located in this folder and all the build happens in it.

Would be useful to allow users to checkout once and use the exact same code in all the builds. This can be used when all the jobs/stages are run in the same agent/machine or when transferring the code to the next stage would be faster than checking the code from he repo.

Currently this can be done by zipping the code and making it available as an artifact to other Jobs/Stages.